freebsd-skq/sys/net
Alexander V. Chernikov 151ec796a2 Fix the design problem with delayed algorithm sync.
Currently, if the immutable algorithm like bsearch or radix_lockless
 receives rtable update notification, it schedules algorithm rebuild.
This rebuild is executed by the callout after ~50 milliseconds.

It is possible that a script adding an interface address and than route
 with the gateway bound to that address will fail. It can happen due
 to the fact that fib is not updated by the time the route addition
 request arrives.

Fix this by allowing synchronous algorithm rebuilds based on certain
 conditions. By default, these conditions assume:
1) less than net.route.algo.fib_sync_limit=100 routes
2) routes without gateway.

* Move algo instance build entirely under rib WLOCK.
 Rib lock is only used for control plane (except radix algo, but there
  are no rebuilds).
* Add rib_walk_ext_locked() function to allow RIB iteration with
 rib lock already held.
* Fix rare potential callout use-after-free for fds by binding fd
 callout to the relevant rib rmlock. In that case, callout_stop()
 under rib WLOCK guarantees no callout will be executed afterwards.

MFC after:	3 days
2021-01-30 23:25:57 +00:00
..
altq altq: Fix typo in features sysctl description 2021-01-27 16:42:14 +01:00
route Fix the design problem with delayed algorithm sync. 2021-01-30 23:25:57 +00:00
bpf_buffer.c
bpf_buffer.h
bpf_filter.c
bpf_jitter.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
bpf_jitter.h
bpf_zerocopy.c
bpf_zerocopy.h
bpf.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
bpf.h
bpfdesc.h
bridgestp.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
bridgestp.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
debugnet_inet.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
debugnet_int.h Implement NetGDB(4) 2019-10-17 21:33:01 +00:00
debugnet.c Convert debugnet to the new routing KPI. 2020-04-26 18:42:38 +00:00
debugnet.h Implement NetGDB(4) 2019-10-17 21:33:01 +00:00
dlt.h MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
ethernet.h net: add ETHER_IS_IPV6_MULTICAST 2020-10-30 13:32:58 +00:00
firewire.h
ieee8023ad_lacp.c LACP: When suppressing distributing, return ENOBUFS 2020-11-18 14:55:49 +00:00
ieee8023ad_lacp.h LACP: When suppressing distributing, return ENOBUFS 2020-11-18 14:55:49 +00:00
ieee_oui.h
if_arp.h
if_bridge.c bridge: call member interface ioctl() without NET_EPOCH 2020-10-06 19:19:56 +00:00
if_bridgevar.h libifconfig: Add function to get bridge status 2020-07-01 02:32:41 +00:00
if_clone.c Fix subinterface vlan creation. 2021-01-29 21:43:20 +00:00
if_clone.h epair: Do not abuse params to register the second interface 2020-01-28 22:44:24 +00:00
if_dead.c
if_debug.c
if_disc.c
if_dl.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
if_edsc.c if_edsc: generate an arbitrary MAC address 2020-03-02 02:45:57 +00:00
if_enc.c Consistently include opt_ipsec.h for consumers of <netipsec/ipsec.h>. 2020-05-29 19:22:40 +00:00
if_enc.h
if_epair.c net: Revert vnet/epair cleanup race mitigation 2020-12-01 16:34:43 +00:00
if_ethersubr.c Remove not needed variable initialization. 2020-12-23 12:04:46 +01:00
if_fwsubr.c
if_gif.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
if_gif.h gif_transmit() must always be called in the network epoch. 2020-01-15 06:18:32 +00:00
if_gre.c Add if_reassing method to all tunneling interfaces. 2020-06-03 13:02:31 +00:00
if_gre.h
if_infiniband.c Streamline the infiniband code according to the ethernet code. 2020-12-31 10:07:02 +01:00
if_ipsec.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
if_ipsec.h
if_lagg.c This pulls over all the changes that are in the netflix 2021-01-28 11:53:05 -05:00
if_lagg.h Fix for IPoIB over lagg(4). 2020-12-29 17:35:06 +01:00
if_llatbl.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
if_llatbl.h Implement optional table entry limits for if_llatbl. 2020-03-04 17:17:02 +00:00
if_llc.h
if_loop.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
if_me.c Add if_reassing method to all tunneling interfaces. 2020-06-03 13:02:31 +00:00
if_media.c if_media.c SIOCGMEDIAX handler: improve loop 2020-11-03 14:33:04 +00:00
if_media.h if_media: definitions for 40GE LM4 ethernet media type 2020-09-16 14:45:16 +00:00
if_mib.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
if_mib.h
if_pflog.h
if_pfsync.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
if_sppp.h
if_spppfr.c
if_spppsubr.c Split rtinit() into multiple functions. 2021-01-16 22:42:41 +00:00
if_stf.c Complete conversions from fib<4|6>_lookup_nh_<basic|ext> to fib<4|6>_lookup(). 2020-07-02 21:04:08 +00:00
if_tap.h tap: add support for virtio-net offloads 2019-10-18 21:53:27 +00:00
if_tun.h
if_tuntap.c Remove redundant rtinit() calls from tuntap. 2021-01-13 10:03:15 +00:00
if_types.h Add support for IP over infiniband, IPoIB, to lagg(4). Currently only 2020-10-22 09:47:12 +00:00
if_var.h This pulls over all the changes that are in the netflix 2021-01-28 11:53:05 -05:00
if_vlan_var.h Add support for stacked VLANs (IEEE 802.1ad, AKA Q-in-Q). 2020-10-21 21:28:20 +00:00
if_vlan.c Fix subinterface vlan creation. 2021-01-29 21:43:20 +00:00
if_vxlan.c vxlan: stop checking CSUM_ENCAP_VXLAN when converting inner CSUM flags into normal, for decapsulation. 2020-12-23 10:54:06 +02:00
if_vxlan.h if_vxlan(4): add support for hardware assisted checksumming, TSO, and RSS. 2020-09-18 02:37:57 +00:00
if.c Create new in6_purgeifaddr() which purges bound ifa prefix if 2021-01-17 20:32:25 +00:00
if.h Catch up with 6edfd179c8: mechanically rename IFCAP_NOMAP to IFCAP_MEXTPG. 2021-01-29 11:46:24 -08:00
ifdi_if.m iflib: Stop interface before (un)registering VLAN 2020-04-27 22:02:44 +00:00
iflib_clone.c Import kernel WireGuard support 2020-11-29 19:38:03 +00:00
iflib_private.h
iflib.c Catch up with 6edfd179c8: mechanically rename IFCAP_NOMAP to IFCAP_MEXTPG. 2021-01-29 11:46:24 -08:00
iflib.h iflib: ensure that tx interrupts enabled and cleanups 2021-01-07 14:07:35 -08:00
ifq.h Make net/ifq.h C++ friendly 2020-11-20 14:45:45 +00:00
infiniband.h Factor out generic IP over infiniband, IPoIB, definitions and code 2020-10-22 09:09:53 +00:00
mp_ring.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
mp_ring.h
mppc.h
mppcc.c kernel: provide panicky version of __unreachable 2020-05-13 18:07:37 +00:00
mppcd.c
netisr_internal.h
netisr.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
netisr.h
netmap_legacy.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
netmap_user.h netmap: fix constness warnings generated by "-Wcast-qual" 2020-10-03 09:33:29 +00:00
netmap_virt.h netmap: disable passthrough with no hypervisor support 2020-01-13 21:47:23 +00:00
netmap.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
paravirt.h
pfil.c Since now drivers that support pfil run their interrupts in the network 2020-01-23 01:49:22 +00:00
pfil.h
pfkeyv2.h Add SADB_SAFLAGS_ESN flag 2020-10-16 11:22:29 +00:00
pfvar.h pf: quiet -Wredundant-decls for pf_get_ruleset_number 2021-01-10 21:53:15 -08:00
ppp_defs.h
radix.c Fix definition of rn_addmask() 2020-11-08 19:02:22 +00:00
radix.h
raw_cb.c Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
raw_cb.h
raw_usrreq.c
rndis.h
route.c Fix multipath support for rib_lookup_info(). 2021-01-29 23:14:24 +00:00
route.h Split rtinit() into multiple functions. 2021-01-16 22:42:41 +00:00
rss_config.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
rss_config.h
rtsock.c Refactor rt_addrmsg() and rt_routemsg(). 2021-01-07 19:38:19 +00:00
sff8436.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
sff8472.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
slcompress.c net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
slcompress.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
toeplitz.c
toeplitz.h
vnet.c Partially revert VNET change and expand VNET structure. 2020-02-17 11:08:50 +00:00
vnet.h net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00